-
公开(公告)号：US20180003589A1
公开(公告)日：2018-01-04
申请号：US15542890
申请日：2016-01-08
发明人： Takao AKIYAMA , Nobuhiko ASAKURA
CPC分类号： G01M15/044 , G01M1/10 , G01M15/02 , G01M15/04
摘要： To provide a dynamometer control device whereby excitation control can be performed so that a resonance phenomenon does not occur even when the moment of inertia of an engine is unknown. A dynamometer control device 6 is provided with an excitation signal generating unit 61 for generating a randomly or periodically fluctuating excitation signal, a speed controller 62 for generating an input signal to a dynamometer whereby a dynamo rotation speed matches a predetermined dynamo command rotation speed, a shaft torque compensator 64 for generating an input signal to the dynamometer whereby vibration of a shaft for connecting an engine and the dynamometer is suppressed using the detection value of a shaft torque sensor, and an adder 65 for generating a torque electric current command signal by adding the input signals generated by the speed controller 62 and the shaft torque compensator 64 to the excitation signal.
-
公开(公告)号：US09841354B2
公开(公告)日：2017-12-12
申请号：US14696496
申请日：2015-04-27
摘要： This invention provides a non-invasive method for diagnosing performance of a vehicle. The method comprises using a 3-axis accelerometer to perform diagnosis of the performance of an internal combustion engine, the performance of the engine including an engine power loss and one or more flaws associated with the engine mount. The method is also usable for diagnosing deterioration of a suspension system of said vehicle. An apparatus comprising a 3-axis accelerometer for diagnosing performance of a vehicle is also provided. In one embodiment, the 3-axis accelerometer is embedded in a smart phone.
-
公开(公告)号：US20170299468A1
公开(公告)日：2017-10-19
申请号：US15516245
申请日：2015-10-01
CPC分类号： G01M15/11 , F02D41/0097 , F02D41/1497 , F02D41/30 , F02D2200/1002 , F02D2200/101 , F02D2200/1015 , F02D2250/14 , F02P17/12 , F02P2017/128 , G01M15/04
摘要： A misfire determination device of an engine in which explosion occurs at unequal intervals, the engine including a plurality of cylinders and a crankshaft which is angularly displaced at a different angle between expansion strokes, is configured to calculate generated torque correlation amount correlated with generated torque, based on an angular position signal of the crankshaft, and perform misfire determination, based on an average value of the generated torque correlation amount in an interval less than one cycle of the engine, at an angular position of the crankshaft which is different from an angular position of the crankshaft at an ignition timing.
-
公开(公告)号：US09719884B2
公开(公告)日：2017-08-01
申请号：US13835897
申请日：2013-03-15
申请人： Robert Bosch GmbH
发明人： Craig Magera , Claus Schnabel , David Boyd
IPC分类号： G01M15/00 , G01M15/04 , G01N27/407
CPC分类号： G01M15/04 , G01N27/4078
摘要： A gas sensor includes a gas sensing element positioned at least partially within a body and being exposed at a first end to measure a gas in contact with the first end. A sleeve is fixed to the body and extends from the body in a direction opposite the first end of the gas sensing element. The sleeve includes it remote end portion having an engagement feature. A connector housing is overmolded onto the end portion of the sleeve to lock onto the sleeve via the engagement feature. The connector housing includes a plug connector portion partially enclosing a plurality of electrical terminals electrically connected to the gas sensing element.
-
公开(公告)号：US20170102295A1
公开(公告)日：2017-04-13
申请号：US15283859
申请日：2016-10-03
发明人： Mikio Komatsu , Kota Suzuki
CPC分类号： G01H1/003 , G01M7/02 , G01M13/028 , G01M13/045 , G01M15/04 , G01M15/12 , G01M17/00 , G01M99/00
摘要： The fault diagnostic system includes a sensor which is provided in each of a plurality of diagnosis target devices and detects diagnosis target information of the corresponding diagnosis target device, and a diagnosis unit which is provided for one or a plurality of diagnosis target devices and determines whether or not abnormality occurs in the corresponding diagnosis target device based on the diagnosis target information detected by the sensor. The diagnosis unit outputs an abnormality determination result to the outside, and when a specific condition is established, outputs diagnosis target information detected by the sensor after the specific condition is established.
-
公开(公告)号：US09389142B2
公开(公告)日：2016-07-12
申请号：US14172209
申请日：2014-02-04
申请人： DENSO CORPORATION
发明人： Ryo Tamura , Yoshinori Maegawa
CPC分类号： G01M15/04 , F02M25/0809 , G01M3/26 , G01M15/042
摘要： A leakage diagnosis apparatus is applied to an evaporated-gas purge system including a negative-pressure sensor and a pressure detecting portion. The negative-pressure sensor introduces a negative pressure into an evaporation system. The pressure detecting portion detects the pressure in the evaporation system. The leakage diagnosis apparatus includes a leakage-diagnosis portion and a determining portion. The leakage-diagnosis portion executes a leakage diagnosis to determine whether a leakage of the evaporation system is generated. The determining portion determines whether an evaporated-gas amount in the evaporation system is in an excessive state while the internal combustion engine is stopped. The leakage-diagnosis portion prohibits or terminates the leakage diagnosis, when the determining portion determines that the evaporated-gas amount is in the excessive state.
摘要翻译： 将泄漏诊断装置应用于包括负压传感器和压力检测部的蒸发气体净化系统。 负压传感器将负压引入蒸发系统。 压力检测部分检测蒸发系统中的压力。 泄漏诊断装置包括泄漏诊断部和确定部。 泄漏诊断部分执行泄漏诊断以确定是否产生蒸发系统的泄漏。 确定部分确定在内燃机停止时蒸发系统中的蒸发气体量是否处于过度状态。 当确定部分确定蒸发气体量处于过度状态时，泄漏诊断部分禁止或终止泄漏诊断。
-
公开(公告)号：US09329101B2
公开(公告)日：2016-05-03
申请号：US14097521
申请日：2013-12-05
发明人： Moritz Frohlich , Markus Kraus , Markus Kroll
CPC分类号： G01M15/04 , F02D19/025 , F02D19/027 , F02D41/20 , F02D41/221 , F02D2041/2055 , F02D2041/2058 , F02D2041/224 , F02M21/0254 , F02M21/0293 , G01R31/2829 , Y02T10/32 , Y02T10/40
摘要： A method includes checking whether an electromagnetically actuated gas injector arranged in an internal combustion engine between a fuel source and a combustion chamber is in the closed end position thereof. According to the method, an electric test voltage is applied to the gas injector and the discharge current generated by the electric test voltage is measured.
摘要翻译： 一种方法包括检查布置在燃料源和燃烧室之间的内燃机中的电磁致动气体喷射器是否处于其闭合位置。 根据该方法，对气体喷射器施加电气测试电压，并且测量由电测试电压产生的放电电流。
-
公开(公告)号：US20160084735A1
公开(公告)日：2016-03-24
申请号：US14891287
申请日：2014-04-21
CPC分类号： G01M15/02 , G01L3/242 , G01M15/04 , G01M15/044
摘要： Provided is an engine bench system capable of performing a racing test with good precision. A test body is separated into an engine main body and intermediate coupling body for connecting a crankshaft and an output shaft of the dynamometer. The engine bench system is provided with: a shaft torque sensor for detecting torsional torque; a shaft torque command generation apparatus for calculating a dynamo-side shaft torque command value by summing an engine-side shaft torque command value, and a torque value proportional to the moment of inertia of the intermediate coupling body; and a shaft torque controller for generating a torque control signal on the basis of the dynamo-side shaft torque command value and the output value of the shaft torque sensor.
摘要翻译： 提供能够以高精度执行赛车测试的发动机台架系统。 测试体被分离成发动机主体和中间联接体，用于连接曲轴和测力计的输出轴。 发动机台架系统设有：用于检测扭矩的轴扭矩传感器; 轴转矩指令产生装置，用于通过将发动机侧轴转矩指令值相加和与中间联接体的惯性矩成正比的转矩值来计算发电侧轴转矩指令值; 以及轴转矩控制器，用于基于发电侧轴转矩指令值和轴转矩传感器的输出值产生转矩控制信号。
-
9.发明授权公开(公告)号：US09000709B2
公开(公告)日：2015-04-07
申请号：US13612209
申请日：2012-09-12
申请人： Brian T. Concannon
发明人： Brian T. Concannon
摘要： Apparatus for controlling and diagnosing a prime mover of a vehicle traction system includes an alternator having a rotor and coupled to a crankshaft of the prime mover, a source of electrical energy, a position sensor supplying a position signal representative of an angular position of the rotor, and a control computer. The computer supplies energy to the alternator to crank the prime mover at a controlled rate. In a diagnosis mode, the computer generates a condition signal indicative of a malfunction of the prime mover, from a compression signal derived from an acceleration signal which is derived from the position signal. In a barring-over mode, the computer also supplies energy to the alternator and monitors the position signal to place the crankshaft in a desired angular position in an operation separate from diagnosis mode.
摘要翻译： 用于控制和诊断车辆牵引系统的原动机的装置包括具有转子并耦合到原动机的曲轴的交流发电机，电能源，位置传感器，其提供代表转子的角位置的位置信号 ，以及控制计算机。 计算机向交流发电机提供能量，以受控的速率起动起动机。 在诊断模式中，计算机根据从位置信号导出的加速度信号导出的压缩信号，生成表示原动机故障的状态信号。 在隔离模式中，计算机还向交流发电机供电并监视位置信号，以便在与诊断模式分离的操作中将曲轴放置在期望的角位置。
-
10.发明授权公开(公告)号：US08887559B2
公开(公告)日：2014-11-18
申请号：US13820987
申请日：2011-09-07
申请人： Daniel Kuhn , Stefan Michael
发明人： Daniel Kuhn , Stefan Michael
CPC分类号： G01M15/04 , F01M13/00 , F01M2013/0005 , F02D41/18 , F02D41/22 , F02D2041/1432 , Y02T10/40
摘要： A method for checking the functioning of a ventilation apparatus for ventilating a crankcase connected via the ventilation apparatus to an air supply system of the internal combustion engine includes: determining a pressure difference between an ambient pressure and a crankcase pressure in the crankcase; identifying a fault in the ventilating apparatus as a function of the pressure difference if an enabling condition is met; the enabling condition being met if an air mass flow in the air supply system, filtered by a low-pass filter, exceeds a first threshold value in terms of absolute value.
摘要翻译： 一种用于检查通风装置的功能的方法，所述通风装置用于使通过所述通风装置连接到所述内燃机的空气供应系统的曲轴箱通风，包括：确定所述曲轴箱中的环境压力和曲轴箱压力之间的压力差; 如果满足使能条件，则识别通气设备中的故障作为压力差的函数; 如果通过低通滤波器滤波的空气供应系统中的空气质量流量以绝对值来超过第一阈值，则满足使能条件。
-
-
-
-
-
-
-
-
-
搜索结果
163 条记录 (耗时 0.019 秒)